Belfast·SPG004 Residential Extensions and Alterations·Page 15·4.1.4
Minimum set back and set down requirements
Extensions must be set back from the front of the house by a minimum of 500mm and set down from the existing roofline by a minimum of 500mm, with requirements potentially increased based on the size of the existing house, extension design, and area character.
The distance required will depend on the size of the existing house and the design of the extension, and taking into account of the character of the area. For some proposals a greater distance of set back and set down may be required, but at a minimum, the Council will expect extensions to be: i. Set back from the front of the house by 500mm; and ii. Set down from the existing roofline by 500mm; with
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